21248250

素因数分解:

$2^1\times 3^1\times 5^3\times {\mathrm{41}}^1\times {\mathrm{691}}^1$

素因数の和:752

約数の個数: 64

約数和(自身を含む): 54407808

約数和(自身を除く): 33159558

約数列:

[1, 2, 3, 5, 6, 10, 15, 25, 30, 41, 50, 75, 82, 123, 125, 150, 205, 246, 250, 375, 410, 615, 691, 750, 1025, 1230, 1382, 2050, 2073, 3075, 3455, 4146, 5125, 6150, 6910, 10250, 10365, 15375, 17275, 20730, 28331, 30750, 34550, 51825, 56662, 84993, 86375, 103650, 141655, 169986, 172750, 259125, 283310, 424965, 518250, 708275, 849930, 1416550, 2124825, 3541375, 4249650, 7082750, 10624125, 21248250]

約数ペア:

[(1, 21248250), (2, 10624125), (3, 7082750), (5, 4249650), (6, 3541375), (10, 2124825), (15, 1416550), (25, 849930), (30, 708275), (41, 518250), (50, 424965), (75, 283310), (82, 259125), (123, 172750), (125, 169986), (150, 141655), (205, 103650), (246, 86375), (250, 84993), (375, 56662), (410, 51825), (615, 34550), (691, 30750), (750, 28331), (1025, 20730), (1230, 17275), (1382, 15375), (2050, 10365), (2073, 10250), (3075, 6910), (3455, 6150), (4146, 5125)]